Some victims and their lawyers had waged a campaign against the deal in recent weeks, arguing that it did not guarantee that victims would receive all of the money that they were promised. PG&E has agreed to pay half of the $13.5 billion in cash and the other half in the company’s stock, which has fluctuated wildly, especially since the coronavirus spread widely.

Critics wanted an all-cash settlement, something PG&E has agreed to in a separate deal with a group of investors and businesses that own insurance claims against the company. The company will pay that group $11 billion.

The contentious voting process, which began in March and ended Friday, pitted groups of victims and lawyers against one another, with some raising questions about potential conflicts of interest involving a lawyer who represents 16,000 wildfire victims. The lawyer, Mikal Watts, has a $100 million line of credit that was funded in part by investment funds that had invested in PG&E’s stock and bonds. Mr. Watts supported the agreement.

But the contingent of victims campaign for a “No” vote failed to gain traction. Many victims were uninterested in extending negotiations with PG&E because they have spent months or years living in temporary quarters and have grown weary of waiting for compensation.

PG&E still has to gain approval for its bankruptcy plan from the California Public Utilities Commission, which is scheduled to vote Thursday on a record penalty of almost $2 billion against the utility for the wildfires it caused.

With the 2020 wildfire season drawing near, some government officials and wildfire victims fear PG&E is ill prepared to prevent more fires.

Last year, PG&E avoided setting off the kinds of deadly wildfires it has become known for by cutting power to millions of people for as long as a week during dry and windy conditions. The strategy, called public safety power shut-offs, angered residents and state officials who have pressed the utility to limit its use of that strategy.

The California Department of Forestry and Fire Protection said last week that there could be more fierce wildfires this season than in 2019 because of a lack of snow and rain.